What Are the Reasons for the Inability to Accelerate When Pressing the Throttle?
2 Answers
The reasons for the inability to accelerate when pressing the throttle are: 1. Air entering the fuel tank, causing insufficient fuel supply; 2. Clogged carbon canister, obstructing the fuel line; 3. Worn fuel pump push rod or lower rod screws; 4. Severe engine carbon buildup; 5. Insufficient fuel pump pressure. The solutions for the inability to accelerate when pressing the throttle are: 1. Remove engine carbon deposits; 2. Replace the fuel filter; 3. Replace the fuel pump; 4. Clean the carbon canister and fuel supply line. The function of the throttle: By controlling the amount of pedal depression, it regulates the engine throttle opening, controls the air intake, and the computer adjusts the fuel quantity, thereby controlling the engine speed.
I've been driving and repairing cars for many years, and I've found that poor acceleration is often due to internal engine issues. For example, a clogged fuel system, excessive carbon buildup in the fuel injectors, or insufficient fuel supply can make the throttle feel sluggish. The ignition system is also crucial—worn-out spark plugs or damaged ignition coils can lead to insufficient engine spark, naturally reducing power. The air filtration system is equally important; a dirty air filter blocking the intake makes the engine feel like it's gasping for air. Sensor issues, such as a malfunctioning throttle position sensor, can also cause the computer to adjust improperly. I recommend checking basic components first, like replacing the spark plugs or cleaning the fuel injectors. Regular maintenance can prevent these issues. Safety comes first—if acceleration is unstable, avoid high-speed driving and seek professional repair as soon as possible.
